Lock



Patented July 14, 1936 UNITED stares rarest orrics LOCK Frederic K. Heyer, Stamford, Conn., and Charles B. Lowe, Philadelphia, Pa assignors to The Yale & Towne Manufacturing Company, Stamford, Conn.

Application May 13, 1930, Serial No. 452,079

29 Claims.

This invention relates to cylinder locks of the type adapted to be used on automobiles for locking some controlling .part of the automobile mechanism. I g F This invention relates more particularly to a cylinder lock in which the cylinder is mounted for movement relatively to a housing for the purpose of controlling some locking unit. A fea- .ture of the invention is the arrangement of the cylinder for movement relativelyto the housing, with the provision of means for locking the cylinder relatively to the housing and for retaining the same relatively thereto in a simple and effective manner. More particularly, our invention'resides 'in the use of a new type of bolt and retaining member, and in the means for mounting and operating the same.

A further feature of the invention resides in the provision of means for dead-locking the mechanism which looks the cylinder relatively to the housing, and for providing means whereby when the lock is actuated to unlock the cylinder relatively to the housing, it will be impossible to remove "the key without once more looking the cylinder within the housing.

While we will show these and various other features as appliedto particular lock mechanism, it should be understood that our invention is broad in its aspects, and is applicable to many other forms of locking devices, as will be apparent to any one skilled in the lock art.

For a clear description of our invention, We

. refer to the drawing wherein Fig. l is a top view ofmovement. Fig. 4 is a section along the line l-4 of Fig. 2. Fig. 5 is a section along the line 5- 5 of Fig. 2. Fig. 6 is a section along the line .B--6 of Fig. .3. Fig. '7 is a partial section of a modification of my invention.

Referring .now more particularly to the drawing, reference numeral |ll= indicates a cylinder having a plug II mounted for movement in the ,same. This plug may be of any desired type, but ,in the present invention, it is of the sliding tumbler-type, in which a series of sliding tumblers .50,

cylinder in :a manner well known in the art.

-I l 0., are adaptedto lock the same relatively to the This-plug H is retained against endwise movement in the cylinder in by a snap ring 62 rest- ,ing in a groove [3 of the plug and in a corresponding groove M of the cylinder. As will be movement a predetermined extent.

in the plug, the tumblers are set, and the plug is permitted to rotate to actuate the particular locking mechanism. 7

The cylinder Hl carries a bolt [6 equipped with a portion I! which will hereinafter be referred to as a locking portion, and a round portion I8 which will hereinafter be referred to as the retaining portion of the bolt. This bolt is further equipped with a shoulder or ear l9 which rests; in a slot in the cylinder, this. arrangement allowing for pivotal movement of the boltrelatively to the cylinder. A spring '2! is mounted so as to operate between the bolt 16 and a lug 22 on the plug. 80 as to constantly urge the bolt It into its position of Fig. 2, and at the same time, exert a rotating pressure against the plug H) as will be readily understood.

The cylinder Ill, the plug H, and .the bolt l6,

are all adapted to be mounted in a housing 23. g

This housing is equipped with a slot 24, in which the retaining portion l8 and the locking portion ll of the boltit are .adapted to operate. The plug H is equipped with a cam portion 2.5a (better shown in Figs. 3 and 4), this camming portion being adapted to cooperate with a lower portion 26a of the bolt l6, for a explained presently. 1

The operation of the foregoing mechanism is readily understood. When the key I 5 is inserted into the plug and the tumblers (not shown) are correctly positioned, the plug will be permitted to rotate. This rotation will cause cam .25 to act against bolt portion 26 to rotate the bolt about its shoulder or ear l9 as a pivot, moving the bolt from the position of Fig. 2 to the position of Fig. 3, wherein the locking portion ll will have been removed from the slot 24 so as topermit longitudinal movement of the cylinder It) relatively to the housing zt. This lonpurpose which will be gitudinal movement is adapted to control certain locking mechanism, which does notform any part of the present invention. At the same time, the retaining member H! of the ,bolt .16 will be positioned as shown in Fig. 3 and will retain the cylinder NJ within the housing, limiting its It will be readily understood that by this arrangement, applicant is able to obtain his locking and retaining action of the cylinder relatively to the housing 23 in a very simple and effective manner.

As will he observed more particularly with reference to Figs. 5 and .6,1the plug II has acutaway portion 21. When'the plug is in its initial position of Fig. 2, this cut-away portion 2.! will be positioned out of the plane of the bolt is. Therefore, bolt 16 Will be deadlocked by the body portion of the plug and will be in a position where it cannot be retracted to permit movement of the cylinder, except through authorized key rotation of the plug.

Rotation of the plug l l to the position of Fig. 3, will cam the bolt l6 downwardly so that it may enter the cut-away slot 21 which has in the meantime moved in a counter-clockwise direction from Fig. 5 to the position of Fig. 6. The relation of this slot 2! to the bolt I6 is such that when the bolt I6 is positioned in the slot 21, as shown in Figs. 3 and 6, it will be impossible to rotate the plug back to the initial position of Figs. 2 and 5, wherein the key may be removed. It is obvious that it will be impossible for the bolt I6 to move out of the slot in Figs. 3 and 6, due to the fact that the locking portion I! of the bolt is maintained rigidly within the housing 23. To remove the key, it is necessary to push the cylinder rearwardly from the position of Fig. 3, to the position of Fig. 2 in order to permit the bolt I6 to move out of the slot 21 to its initial position of Fig. 2. Thereafter the plug may be rotated back to bolt locking position. By this arrangement, it is quite evident that the locking bolt is deadlocked in its initial position, and that when the plug is rotated to release the cylinder relatively to the housing, it will be impossible to remove the key without once more locking the cylinder relatively to the housing.

In Fig. 7, we have illustrated a modification of our invention, wherein, instead of using a single bolt having a retaining and a locking portion, we use two independent bolts H" and [8' one of which is adapted to lock the cylinder relatively to the housing, while the other is adapted to retain the cylinder relatively to the housing.

While we have shown a particular embodiment of our invention, it will be readily understood that modifications of the same within the scope of the appended claims will be obvious to one skilled in the art.

We claim: 7

1. In a lock, a housing, a cylinder movable in said housing, a retaining member and a locking bolt carried by said cylinder for retaining said cylinder in said housing and looking it from movement relatively to said housing, said retainer member and locking bolt being in axial alinement, and a single means in said housing cooperable successively with said bolt and retainer.

2. In a lock, a housing, a cylinder movable in said housing, a retaining and locking mechanism carried by said cylinder for retaining the same and locking it relatively to said housing, and a single means in said housing cooperable in the same vertical plane and in like manner with the retaining and locking mechanism for both looking said cylinder and for limiting its movement relatively to said housing.

3. In a look, a housing, a cylinder movable in said housing, a retainer member and a locking bolt carried by said cylinder for retaining the same and locking it relatively to said housing, and a single means in said housing cooperable successively with the locking bolt and the retaining member for locking said cylinder and. limiting its movement relatively to said housing.

4. In a look, a housing, a cylinder movable in said housing, a bolt carried by said cylinder and adapted to lockthe same against movement relatively to said housing, a retainer bolt carried. by

said cylinder, and adapted to limit its movement relatively to said housing, a slot in said cylinder housing, said retainer bolt and said locking bolt being cooperable with said slot to limit and lock the cylinder against movement relatively to said housing.

5. In a lock, a housing, a cylinder movable in said housing, a bolt carried by said cylinder and adapted to lock the same against movement relatively to said housing, a retainer bolt carried by said cylinder, and adapted to limit its movement relatively to said housing, a slot in said cylinder housing, said locking bolt being cooperable with said slot for locking said cylinder in said housing, keyoperated means for withdrawing said bolt from looking position, said retainer bolt being adapted to cooperate with said slot to limit movement of the cylinder when said cylinder has been released by withdrawal of the locking bolt.

6. In a lock, a housing, a cylinder mounted in said housing, a key operated bolt having locking and retaining portions mounted in said cylinder and adapted to cooperate with means on said housing to lock the cylinder against movement relatively to said housing, said bolt when key operated being movable so as to release said cylinder for movement in said housing while bringing a retaining portion of the bolt into cooperation with said housing means for limiting the movement of the cylinder in said housing, said locking and retaining action of said housing and bolt being effective in the same plane.

'7. In a cylinder look, a housing, a cylinder movable in said housing, a pivotally mounted bolt for locking said cylinder relatively to said housing, a rotatable plug in said cylinder, and means operable by rotation of said plug to move said bolt on its pivot for releasing said cylinder relatively to said housing, said bolt being movable in a plane perpendicular to the plane of rotation of said plug.

8. In a lock, 2. housing, a cylinder movably mounted in said housing, a bolt mounted in said cylinder and adapted to lock the same against movement relatively to said housing, key controlled means in said cylinder having an operating portion for retracting said bolt, a portion of said key controlled means being cooperable with said bolt for maintaining the same deadlocked.

9. In a lock, a housing, a cylinder movable in said housing, a bolt mounted in said cylinder and adapted to lock the same against movement relatively to said housing, key controlled means having a cam for camming said bolt into a releasing position, and means on said key controlled means apart from said cam adapted to prevent movement of said bolt until said key controlled means has been operated.

10. In a lock, a housing, a cylinder mounted in said housing, a bolt mounted in said cylinder and adapted to lock the same against movement relatively to said housing, a rotary cam, key 0perated means for operating said cam, and means on said key operated means for deadlocking said bolt until said key operated means has been rotated.

11. In a look, a housing, a cylinder movable in said housing, a bolt mounted in said cylinder and adapted to lock the same against movement rela tively to the housing, key controlled means in said cylinder for operating said bolt, and a portion of said bolt being cooperable with said key operating means to maintain said means in the final operating position when the bolt has been retracted.

.7 14:. Ina look, a housing, a

aosaees 12. In alock, a cylinder, a key plug operable in said cylinder; a bolt adapted to be retracted by key operation or said plug, a slot in said plug,

andaportion of said bolt being'adapted to en,

ter said plug slot when the bolt is retracted. so as to maintain. said plug substantially in its key operated position.

1 3. Ina look, a cylinder, a key plug operable in: said cylinder, a bolt adapted to be retracted by key operation of said plug, a portion of said plug being positioned before said key operation so as to deadlock said bolt, and a portion oi said bolt being positioned relatively to said plug after key operation: to prevent return of said plug to j cylinder against such outward movement, a key plug in said cylinder adapted to retract said bolt and permit outward movement of said cylinder, and a further structural portion of said bolt independent of the locking portion thereof adapted to limit such outward movement.

15. In a look, a housing, a cylinder movable in said housing, a retaining and locking mechanism comprising structurally separate elements carried by said cylinder for retaining the same and looking it relatively to said housing, and a single surface thereof cooperable successively in like manner with the structurally separate retaining and locking elements, for-both locking the cylinder and for limiting its movement relatively to said housing.

16. In a look, a housing, a cylinder movable in said housing and normally urged in an outward direction, a retaining and locking mechanism comprising structurally separate elements carried by said cylinder, said housing having a slot with which the structurally separate retaining and locking elements are cooperable in like manner for successively locking said cylinder and for limiting its outward movement relatively to the housing, and a key plug for varying the relationship of said retaining and locking mechanism relatively to said slot.

17. In a look, a housing, a cylinder movable in said housing and normally urged in an outward direction, a retaining and locking mechanism comprising structurally separate elements carried by said cylinder, said housing having a slot with a surface thereof with which the structurally' separate retaining and locking elements are cooperable in like manner for successively locking said cylinder and for limiting its movement relatively to the housing, and a key plug for varying the relationship of said retaining and locking mechanism relatively to said slot.

18. In a look, a housing, a cylinder mounted in said housing, a key operated bolt having locking and retaining portions mounted in said cylinder and adapted to cooperate with means on said housing to lock the cylinder against movement relatively to said housing, said bolt when key operated being'movable so as to move its locking portion to release said cylinder for movement in said housing while bringing its retaining portion into cooperation with said housing means for limiting the movement of the cylinder in said housing.

19. In a look, a housing, a cylinder in said housing adapted to move longitudinally therein,

' a bolt carried by'said cylinder and pivoted for movement when key operated, about an axis transverse to the direction of movement of said cylinder, a slot in said housing relatively to, which said: bolt moves as it pivots, one part of said bolt. being cooperable with an end surface of said slot to lock the cylinder against movement longitudinal'l y in said housing, said bolt when key operated. being arranged to swing on'its pivot to withdraw said part from. looking relation. to said slot, said bolt having a second portion adapted to swing and move into locking. relation to said slot: as the bolt pivots to withdraw the first part from the slot and as saidv cylindermoves forward when so released, said second part being cooperable with the end: surface of the slot to limit'the longitudinal movement-of the. cylinder in the housing.

26'. In a look, a housing, a cylinder lock in said housing, a bolt carried by said cylinder look for interlocking with said housing, a key plug in said cylinderlock adapted to deadlock said bolt, means whereby rotation of said key plug releases said bolt from its deadlock and moves it into a releasing position, and means whereby said bolt locks said plug in its bolt releasing position.

21. In a look, a housing, a cylinder lock slidable in said housing, a bolt carried by said cylinder lock and adapted to lock said cylinder to said housing in a predetermined position, a key plug in said cylinder adapted to deadlock said bolt, means whereby rotation of said key plug retracts said bolt to permit sliding of said cylinder to a second predetermined position, and means whereby at said second predetermined position the key plug will be deadlocked in its bolt releasing position.

22. In a look, a housing, a cylinderlock slidable in said housing, a bolt carried by said cylinder lock and adapted to lock said cylinder to said housing in a predetermined position, a key plug in said cylinder adapted to deadlock said bolt, means whereby rotation of said key plug retracts said bolt to permit sliding of said cylinder to a second predetermined position, and means whereby at said second predetermined position said bolt will lock said key plug in its bolt releasing position.

23. In a look, a housing, a cylinder lock slidable in said housing, a bolt carried by said cylinder lock and adapted to lock said cylinder to said housing in a predetermined position, a key plug said bolt adapted to enter a groove in the plug at said second predetermined position for locking the plug in its then rotated position.

24. In a look, a housing, a cylinder lock slidable in said housing, a bolt carried by said cylinder lock and adapted to lock said cylinder to'said housing in a predetermined position, a key plug in said cylinder adapted to deadlock said bolt, means whereby rotation of said key plug retracts said bolt to permit sliding of said cylinder to a second predetermined position, a portion of said bolt adapted to enter a groove in the plug at said second predetermined position for locking the plug in its then rotated position, and means on said housing adapted to maintain the bolt in its plug locking position.

25. In a look, a housing, a cylinder lock slidable in said housing, a bolt carried by said cylinder lock and adapted to lock said cylinder to said housing in a predetermined position, a key plug in said cylinder, means whereby rotation of said key plug retracts said bolt to permit sliding of said cylinder to a second predetermined position, and means whereby at said second predetermined position the key plug will be deadlocked in its bolt releasing position.

26. In a look, a housing, a cylinder lock slidable in said housing, a bolt carried by said cylinder lock and adapted to lock said cylinder to said housing in a predetermined position, a key plug in said cylinder, means whereby rotation of said key plug retracts said bolt to permit sliding of said cylinder to a second predetermined position, and means whereby at said second predetermined position said bolt will lock said key plug in its bolt releasing position 27. In a look, a housing, a cylinder lock slidable in said housing, a bolt carried by said cylinder lock and adapted to lock said cylinder to said housing in a predetermined position, a key plug in said cylinder, means whereby rotation of said key plug retracts said bolt to permit sliding of said cylinder to a second predetermined position, and a portion of said bolt adapted to enter a groove in the plug at said second predetermined position for locking the plug in its then rotated position.

28.- In a lock, a cylinder, a key plug operable in said cylinder, a bolt, means on said plug for deadlocking the bolt, means whereby rotation of said key plug retracts the bolt, and means on said bolt effective when said bolt is retracted by said rotation to lock said key plug in its rotated position.

29. In a look, a cylinder, a key plug operable in said cylinder, a bolt, means whereby rotation of said key plug retracts the bolt, and means on said bolt effective when said bolt is retracted by said rotation to lock said key plug in its rotated position.

CHARLES B. LOWE. FREDERIC K. HEYER. 

